/* Components System */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-body-small);
    font-weight: 500;
    text-align: center;
    cursor: pointer;
    border: none;
    border-radius: 8px;
    transition: all var(--transition-standard);
    text-decoration: none;
    line-height: 1;
}

.btn-primary {
    background-color: var(--color-text-primary);
    color: var(--color-base);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text-primary);
    border: 1px solid var(--color-text-primary);
}

.btn-secondary:hover {
    background-color: hsla(25, 5%, 11%, 0.05);
    /* very light transparent overlay */
}

.btn-tertiary {
    background-color: transparent;
    color: var(--color-text-primary);
    padding: 0;
    font-size: var(--text-caption);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    display: inline-flex;
    gap: var(--space-2);
    align-items: center;
}

.btn-tertiary .arrow {
    transition: transform var(--transition-standard);
}

.btn-tertiary:hover .arrow {
    transform: translateX(4px);
}

/* Sticky Navigation */
.site-header {
    position: sticky;
    top: 0;
    width: 100%;
    background-color: hsla(40, 15%, 96%, 0.85);
    /* Slightly transparent base color */
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid var(--color-border);
    padding-block: var(--space-3);
    transition: background-color var(--transition-standard);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    white-space: nowrap;
    font-size: 1.125rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    color: var(--color-text-primary);
}

.nav-links {
    display: flex;
    gap: var(--space-5);
    align-items: center;
}

.nav-link {
    white-space: nowrap;
    font-size: var(--text-caption);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
}

.nav-link:hover,
.nav-link.active {
    color: var(--color-text-primary);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-2);
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background-color: var(--color-text-primary);
    margin-bottom: 5px;
    transition: all var(--transition-standard);
}

.hamburger-line:last-child {
    margin-bottom: 0;
}

/* 960px, not 768px: the "AI Design Consulting" label needs the room, and
   below this width the desktop row wraps the logo and button. */
@media (max-width: 960px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background-color: var(--color-base);
        flex-direction: column;
        padding: var(--space-6) var(--container-padding);
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-elevation);
    }

    .nav-links.open {
        display: flex;
    }

    .mobile-menu-toggle {
        display: block;
    }
}

/* Hero Background Treatments */
.hero-bg-wrapper {
    position: relative;
    background-color: var(--color-base);
    border-radius: 12px;
    overflow: hidden;
    /* Box shadow for depth */
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

/* Background image layer with opacity and parallax */
.hero-bg-wrapper::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: var(--hero-bg);
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    background-repeat: no-repeat;
    z-index: 0;
}

/* Subtle overlay to ensure text contrast */
.hero-bg-wrapper::after {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at left center, rgba(248, 247, 244, 0.95) 0%, rgba(248, 247, 244, 0.7) 40%, rgba(248, 247, 244, 0.0) 100%);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    z-index: 1;
}

.hero-bg-content {
    position: relative;
    z-index: 10;
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    padding: var(--space-6);
    border-radius: 0;
    /* Sharp corners */
    transition: all var(--transition-standard);
}

.card:hover {
    border-color: hsla(25, 5%, 11%, 0.2);
    box-shadow: var(--shadow-soft);
}

.card-title {
    font-size: var(--text-h3);
    margin-bottom: var(--space-3);
    font-weight: 500;
}

/* Insight Cards (Editorial Thumbnail Layout) */
.insights-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.insight-card {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--color-border);
    transition: border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    overflow: hidden;
    /* Keep image inside */
    background-color: var(--color-base);
}

.insight-card:hover {
    border-color: var(--color-text-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.03);
}

.insight-card-image {
    width: 100%;
    aspect-ratio: 16 / 9;
    flex-shrink: 0;
    background-color: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    overflow: hidden;
    display: block;
}

.insight-card-image img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    object-position: center center;
    opacity: 0.9;
    transition: transform 0.4s ease;
}

.insight-card:hover .insight-card-image img {
    transform: scale(1.05);
    /* Subtle zoom on hover */
}

.insight-card-content {
    padding: var(--space-5);
    flex-grow: 1;
}

.insight-card .insight-date {
    font-size: var(--text-caption);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
    display: block;
}

.insight-card h3 {
    font-size: var(--text-h3);
    margin-bottom: var(--space-3);
    letter-spacing: -0.01em;
    line-height: 1.3;
}

.insight-card p {
    font-size: var(--text-body-small);
    color: var(--color-text-secondary);
    margin-bottom: 0;
    line-height: 1.5;
}

/* Case Study Variation */
.card-case {
    background-color: transparent;
    border: none;
    padding: 0;
    position: relative;
}

.card-case::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background-color: var(--color-accent-sage);
    transform: scaleY(0);
    transform-origin: top;
    transition: transform var(--transition-standard);
}

.card-case:hover::before {
    transform: scaleY(1);
}

.card-case:hover {
    border-color: transparent;
    box-shadow: none;
}

.card-case .case-content {
    padding-left: var(--space-5);
}

/* Forms */
.form-group {
    margin-bottom: var(--space-5);
}

.form-label {
    display: block;
    font-size: var(--text-caption);
    line-height: var(--lh-caption);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.form-input,
.form-textarea {
    width: 100%;
    background-color: transparent;
    border: none;
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-3) 0;
    font-family: inherit;
    font-size: var(--text-body);
    color: var(--color-text-primary);
    transition: border-color var(--transition-fast);
    border-radius: 0;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-input:focus,
.form-textarea:focus {
    outline: none;
    border-bottom-color: var(--color-text-primary);
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: hsla(25, 5%, 45%, 0.5);
    /* lighter secondary text */
}

/* Quote/Highlight Block */
.quote-block {
    border-left: 2px solid var(--color-accent-clay);
    padding-left: var(--space-5);
    margin-block: var(--space-6);
    font-size: clamp(1.25rem, 3vw, 1.75rem);
    line-height: 1.4;
    font-weight: 400;
    color: var(--color-text-primary);
}

/* KPI Strip */
.kpi-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--space-5);
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
    padding-block: var(--space-6);
    margin-block: var(--space-8);
}

.kpi-item {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.kpi-value {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    font-weight: 500;
    line-height: 1;
    color: var(--color-text-primary);
}

.kpi-label {
    color: var(--color-text-secondary);
    font-size: var(--text-body-small);
}

/* CTA Band */
.cta-band {
    background-color: var(--color-text-primary);
    color: var(--color-base);
    padding-block: var(--space-12);
    text-align: center;
}

.cta-band h2 {
    color: var(--color-base);
}

/* Footer */
.site-footer {
    border-top: 1px solid var(--color-border);
    padding-block: var(--space-8) var(--space-6);
    margin-top: var(--space-12);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    flex-wrap: wrap;
    gap: var(--space-6);
}

.footer-legal {
    font-size: var(--text-caption);
    color: var(--color-text-secondary);
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2) var(--space-5);
    margin-top: var(--space-3);
    font-size: var(--text-caption);
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: underline;
    text-underline-offset: 3px;
}

.footer-links a:hover {
    color: var(--color-text-primary);
}

/* Article Layouts */
.article-hero-layout {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    margin-bottom: var(--space-8);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: var(--space-8);
}

@media (min-width: 900px) {
    .article-hero-layout {
        flex-direction: row;
        align-items: center;
        gap: var(--space-12);
    }

    .article-header {
        flex: 1;
        margin-bottom: 0;
    }

    .article-hero-image-wrapper {
        flex: 1;
    }
}

.article-hero-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.article-inline-image-wrapper {
    margin-block: var(--space-8);
    text-align: center;
}

@media (min-width: 900px) {
    .article-inline-image-wrapper.float-right {
        float: right;
        width: 50%;
        margin-left: var(--space-8);
        margin-top: var(--space-2);
        margin-bottom: var(--space-6);
    }
}

.article-inline-image {
    width: 100%;
    height: auto;
    border-radius: 6px;
    border: 1px solid var(--color-border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04);
}

.article-content {
    font-size: 1.125rem;
    line-height: 1.7;
    color: var(--color-text-secondary);
}

.article-content h2 {
    font-size: var(--text-h2);
    color: var(--color-text-primary);
    margin-top: var(--space-12);
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
    clear: both;
    /* In case float runs into next section */
}

.article-content h3 {
    font-size: var(--text-h3);
    color: var(--color-text-primary);
    margin-top: var(--space-8);
    margin-bottom: var(--space-4);
    letter-spacing: -0.01em;
}

.article-content p {
    margin-bottom: var(--space-5);
}

.meta-strip {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    /* Prevent wrapping overflow on mobile */
    gap: var(--space-4);
    font-size: var(--text-caption);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.meta-tag {
    background-color: var(--color-surface);
    padding: 4px 10px;
    border-radius: 20px;
    border: 1px solid var(--color-border);
    font-weight: 600;
}